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  • Supports SFN/MFN DTV Modulator DVB-T2 Terrestrial Modulator
  • Supports SFN/MFN DTV Modulator DVB-T2 Terrestrial Modulator
Enlarge Supports SFN/MFN DTV Modulator DVB-T2 Terrestrial Modulator

Supports SFN/MFN DTV Modulator DVB-T2 Terrestrial Modulator 

Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: GQ-3800

GQ-3800
 
DVB-T2 Terrestrial Modulator
 
Product Overview</strong

GQ-3800

 

DVB-T2 Terrestrial Modulator

 

Product Overview

 

      GQ-3800B is a highly reliable single-channel DVB-T2 modulator launched by GOSPELL, which is compliant with the EN 302 755(DVB-T2) and EN 302 755 version 1.3.1(T2-Lite, option) standards, and is designed for digital terrestrial distribution by DTT network operators and TV broadcaster.

GQ-3800B combines dual redundant ASI and Gigabit IP input interfaces, for seamless switching between primary and slave interfaces that can greatly improve the stability and reliability of terrestrial distribution networks. It supports T2 modulator interface (T2-MI) over ASI or IP input, which comes from DVB-T2 gateway, suitable for MFN or SFN- networking.

 

      The GQ-3800B features a state-of-the-art linear/non-linear digital pre-correction that optimizes DTT transmitter performance and efficiency. It offers a wide range of UHF band DVB-T2 RF modulation output (470MHz to 860MHz) and various transmission and modulation modes, such as MFN, SFN, SISO, MISO, SPLP and MPLP. Moreover, it supports Web and SNMP based management and control for local and remote parameters configuration and status monitoring.

 

Main Features

 

· Complies with DVB-T2 and T2-Lite(software option) standards

· Supports data input in T2-MI or MPEG-TS format

· Supports SFN/MFN

· Supports Single/Multiple Input Single Output (SISO/MISO)

· Enhanced Digital Adaptive Pre-correction

· Supports linear/non-linear Digital Adaptive Pre-correction, optional enhanced DAP

· Dual ASI and IP input, supporting independent or 1+1 hot redundant(seamless switch)

· QPSK/16QAM/64QAM/256QAM(standard or rotated) mode

· Multiple signal bandwidth can be supported: 5M,6M,7M,8MHz

· Modulation RF output level up to 0dBm

· Supports PAPR adjustment for output signal

· Modulation module is designed based on FPGA to ensure the stability of device

· Adopt extra-large cache memory for both uniform and burst input stream

· Self-adaptive filter circuit design ensures outstanding out-of-band rejection

· Supports Web/SNMP-based network management and monitoring, online upgrade of firmware

 

Technical Specifications

 

ASI Transport Stream Input
Numbers of Input 2 x ASI Input
Connector Type BNC (Female, 75Ω)
Input Bit Rate 0 to 80Mbps each
Standards TS 102 831, EN 102 773(T2-MI)
Data Format MPEG-TS(188/204 Bytes) or T2-MI
Operation Mode 1+1 hot redundancy(seamless switch)
Ethernet Input
Numbers of Input 2 x 100/1000 Base-T Ethernet Input
Connector Type RJ-45
Supported Protocols IP, RTP, UDP, IGMP (V2 & V3)
VLAN ID 0 to 4095(IEEE 802.1q)
Encapsulation & FEC SMPTE-2022
Data Format

MPEG-TS-over- IP/UDP/RTP(7 x 188Bytes )

or T2-MI-over-IP/UDP/RTP
Operation Mode 1+1 hot redundancy(seamless switch)
Clock & Synchronization
External Clock & Sync.

1 x 1PPS In (BNC, 50Ω)

1 x 10MHz In (BNC, 50Ω)

1 x TOD In (DB-9)
Internal GPS Module Optional built-in GPS or GPS/Glonass module
1 x GPS In(BNC, 50Ω, with 3.3V DC feed for external GPS antenna)
Operation Mode Reference clock redundant management
Internal Clock Default internal 10MHz clock
Digital Pre-correction
Linear Pre-correction 1 x FBA input
RF feedback signal from amplifier output
Non-Linear Pre-correction 1 x FBF input
RF feedback signal from filter output
Connector BNC, 50Ω
Pre-correction Mode

Digital Adaptive Pre-correction(DAP)

Enhanced DAP (software option)
Modulation Output
Interface

1 x RF Output

1 x -20dB RF Output(Test Port)
Connector Type F-Type (Female, 75Ω)
RF Frequency Range 470 to 862 MHz (1Hz step size, 0.2Hz accuracy)
Bandwidth 5MHz, 7MHz, 8MHz
Transmission Mode MFN, SFN-SISO, SFN-MISO
Modulation Mode System A, System B, Multi-PLP
Constellations

QPSK, 16/64/256 QAM

(standard or rotated mode)
Carriers 1k, 2k, 4 k, 8k, Extended 8k, 16k, Extended 16k,32k, Extended 32k
Protection Interval 1/2, 3/5, 2/3, 3/4, 4/5, 5/6
RF Output Power Level

90 to 107dBμV (RF output Port)

70 to 87dBμV (-20dB test port)
Output RF Level 0 dBm±1dB
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 Mr. Horace

Tel: 86-755-26716172
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Company Info

Gospell Digital Technology Co.,ltd. [China (Mainland)]


Business Type:Manufacturer
City: Shenzhen
Province/State: Guangdong
Country/Region: China (Mainland)

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